Home / 28,749.96-39,676.50-19,332.36

Finding the Fourth Proportional to 28,749.96, 39,676.50 and 19,332.36

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Solution

The fourth proportional to 28,749.96, 39,676.50 and 19,332.36 is: 26,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.96 : 39,676.50 = 19,332.36 : x
  2. Step 2: Convert to fraction form
    28,749.96/39,676.50 = 19,332.36/x
  3. Step 3: Cross multiply
    28,749.96x = 39,676.50 × 19,332.36
  4. Step 4: Simplify right side
    28,749.96x = 767,040,381.54
  5. Step 5: Solve for x
    x = 767,040,381.54/28,749.96
  6. Step 6: Final answer
    x = 26,679.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.